Machine for indenting paper-stock.



N0. 66| .480. Patented Nov. l3, I900. R. A. G. AULT &. J. C. SCHMIDT.

MACHINE FOB INDENTING PAPER STOCK.

(Application filed Aug. 15, 1900.)

(N0 Mudai.)

THE nonms pnzas ca. mom-Lame, WASHINOYON, n. c.

i tries.

ROBERT A. G. AUL'I AND JOHN C. SCHMIDT, OF YORK, PENNSYLVANIA.

Wl/ tOl-HNE FOR INDENTING PAPER-STOCK.

SPECIFICATION forming; part of Letters Patent No. 661,480, dated November 13, 1900.

Application filed August 15, 1900v Serial No- 26,9&9| KNo model.)

To a mhrmt 'z'rfi rim/y concern. 1

3e it known that we, ROBERT A. G. AULT and JOHN C. SCHMIDT, of York, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Machines for indenting PaperStock; and we do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming a part of this specification, and to the letters of reference marked thereon.

This invention relates to machines for indenting paper-stock in the formation of paper for use as carpet-linings or for packing of fragile objects,such as bottles and the like,the objects of the invention being to provide a cheap and convenient mechanism for performing the indenting operation and a mech anism which may be readily changed to form different sizes and styles of indentation without the necessity of providing new indentingrolls for each size or style.

To these ends the invention consists, broadly stated,in a machine for indenting paper-stock embodying a pattern-roll and a co operating or platen roll, the latter being elastic or having a yielding sin-face and the former having its indenting surface of material formed in lengths with a surface contour corresponding to the desired indentation and applied to the pattern roll by being Wound about the same.

The invention further consists in certain novel details of construction and combinations and arrangements of parts, all as will be hereinafter deseribed,and pointed out particularly in the appended claims.

The accompanying drawing is a perspec tive view of a portion of a paper-machine embodying indenting-rolls constructed in accordance with the present invention.

In said drawing the letter A indicates a suitable framework of any desired character a d provided with bearings for a pair of rolls, ne of which, E, is the pattern-roll before referred to and is preferably mounted in fixed bearings and driven from any suitable source f power through the medium of a belt 0 or quivalent driving mechanism, and the other of which (lettered D) is the platenroll, preferably mounted in adjustable bearings F, so as to be movable toward and from the patternroll to vary the degree of pressure, the adjustment being effected by screwsfor other suitable and well-known adjusting devices.

The platen-roll D is made of or surfaced with an elastic or yielding material, such as soft rubber, and the pattern-roll B is preferably of a rigid material, but is surfaced for the application of the pattern material.

In carrying the invention into practice the said pattern-roll B is preferably covered with windings of rope H, a rope being adopted which is, preferably,of tightly-won nd strands, the several strands being well defined, so as to form projections, which constitute the pattern to be indented in the paper-stock. The ends of the rope are preferably suitably secured to the pattern-roll itself, and it is obvious thatwhere the convolutious of the rope are arranged close together the body of the roll may be plain and smooth but where the windings are separated some suitable guiding means, as grooves, must be employed for retaining the rope in its position on the roll.

Obviously the size of the rope and the style or character of twist in the rope may be varied to form different patterns and different ropes may be substituted without difficulty and without requiring a long stoppage of the machine. By providing a cooperating softsurfaced platen-roll it is obvious that the indentations formed in the paper-stock will correspond to the pattern-roll whatever the particular pattern thereon maybe. Hence there is no need of providing two patternrolls with cooperating projections and indentations, as has heretofore been customary in indenting paper-stock for the purposes contemplated by the present invention.

Any suitable material which maybe applied to the pattern-roll as described, may be substituted for the rope, and hence we do not wish to be understood as limiting ourselves by the use of the particular term rope to a material which is technically known in the trade as rope, although in the preferred machine such material is the material employed. Any rope, such as now found on the market, and particularly Manila rope, is the kind preferably employed, inasmuch as it is found that this material lasts Well in use, is cheap, and when mashed or Worn may be quickly and readily renewed.

In operation the paper-stock after having been formed into a blanket and more or less condensed, but While still in a yielding and plastic condition, is passed through between the indenting-rolls and given its final formation, being thence led off for drying and finishing, as usual.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a machine for indenting paper-stock the combination with a platen-r011 having a yielding surface, of a cooperating pattern-r011 having its surface formed by pattern material wound spirally thereon.

Witnesses:

HENRY R. KRABER, THos. F. HEBERLY. 

